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10.3 Electrical energy and power

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Question 2

A telemetry unit in a weather balloon draws a constant current of 0.015 A from a 12.0 V power supply.

Calculate the electrical energy transferred to the unit during a flight period of 25 minutes25\text{ minutes}25 minutes.

Use the equation:

E=I×V×t E = I \times V \times t E=I×V×t
[2]
Markscheme

10.3 Electrical energy and power Questions

  1. GCSE
  2. /Physics
  3. /10.3 Electrical energy and power

31 exam-style questions on Edexcel GCSE Physics 10.3 Electrical energy and power, covering 10.3.1 The heating effect of an electric current, 10.3.2 Reducing energy transfer in wires, 10.3.3 Advantages and disadvantages of the heating effect, 10.3.4 Energy transferred by an electrical circuit, 10.3.5 Electrical power, and 10.3.6 Energy transfers in domestic devices. Each one has a worked solution and a mark scheme showing where the marks go.

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